Investigation of shear banding in three-dimensional foams - Archive ouverte HAL Access content directly
Journal Articles EPL - Europhysics Letters Year : 2010

Investigation of shear banding in three-dimensional foams


We study the steady flow properties of different three-dimensional aqueous foams in a wide gap Couette geometry. From local velocity measurements through Magnetic Resonance Imaging techniques and from viscosity bifurcation experiments, we find that these foams do not exhibit any observable signature of shear banding. This contrasts with two previous results (Rodts et al., Europhys. Lett., 69 (2005) 636 and Da Cruz et al., Phys. Rev. E, 66 (2002) 051305); we discuss possible reasons for this dicrepancy. Moreover, the foams we studied undergo steady flow for shear rates well below the critical shear rate recently predicted (Denkov et al., Phys. Rev. Lett., 103 (2009) 118302). Local measurements of the constitutive law finally show that these foams behave as simple Herschel-Bulkley yield stress fluids.
Fichier principal
Vignette du fichier
Ovarlez_Shear-banding-in-foams_V2.pdf (335.67 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-00505410 , version 1 (23-07-2010)
hal-00505410 , version 2 (02-05-2011)



Guillaume Ovarlez, Kapil Krishan, Sylvie Cohen-Addad. Investigation of shear banding in three-dimensional foams. EPL - Europhysics Letters, 2010, 91, pp.68005. ⟨10.1209/0295-5075/91/68005⟩. ⟨hal-00505410v2⟩
308 View
185 Download



Gmail Facebook Twitter LinkedIn More